Photomicrographs of developing kidneys from offspring at 10 days of age.

<p>Hematoxylin and eosin stain, same magnification in all pictures. (a) SC offspring and (b) VitD- offspring in the F1 generation; (c) SC offspring and (d) VitD- offspring in the F2 generation. We used the same test frame size over the photomicrographs of the two groups to emphasize that the number of glomeruli was greater in the VitD- group than in the SC group. As observed at birth (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0041740#pone-0041740-g005" target="_blank">Fig. 5</a>). Differences between the SC group (c) and the VitD- group (d) are less marked in the F2 generation.